Retaining valve fastening



Oct. 6, 1931. H, CA PBELL 1,826,052

RETAINING VALVE FASTENING Filed May 2, 1929 Fig.1.

S. H. ampbell Inventor reiterated Oct. 6, 1931 FFECE.

STERLING H. CAMPBELL, OF ST. LOUIS, MISSOURI, ASSIGNOR TO WESTERNRAILWAY EQUIPMENT COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OFMISSOURI RETAINING VALVE FASTENING Application filed May 2, 1929. SerialNo. 359,975.

My invention relates to means for securing the retainin valve of an airbrake system to the end of a railway car to which the system is applied.The object of the invention is to provide a device of simpleconstruction for the purpose above mentioned.

In the accompanying drawings, which illustrate a retaining valvefastening made in accordance with my invention, Figure l is a frontelevation of the detached device; Fig ure 2 is a side view showing thedevice in position on a car; and Figure 3 is a top plan view of theparts in Figure 2.

My retainer is formed from a single bar of metal, preferably square orapproximately so in cross section. This bar is bent at its center toform an elongated loop 1 and a pair of diverging arms 2. The loop hasits lower end closed by inwardly curved portions 3 at the junction ofthe loop with the arms. Portions 4i at the lower ends of the arms arebent over at right angles to the arms and are reduced to cylindricalform to provide studs 5 adapted to pass through the openings in r thelugs 6 of the retaining valve 7.

The loop 1 is of sufiicient length to permit of the necessary verticaladjustment of the valve relative to the car to which it is secured. Oneof the causes necessitating adjustment of the valve is the breaking ofi,due to vibration, of that part of the train pipe let which is threadedinto the lower end 13 of the valve, as shown in dotted lines in Figure2. Therefore the interior length of the loop 1 should be at least equalto the distance the pipe enters the valve plus the diameter of the bolt8 to compensate for such breakage.

Through the loop 1 passes a bolt 8 provided with a collar 9 and rivetedor otherwise fastened to the end 10 of a car, the device being firmlyclamped between the collar and a nut 11 on the bolt. The studs 5 arethreaded and provided with nuts 12 to secure the Valve to the bracket.

Not only is my retaining valve fastening simple, strong, and easy ofmanufacture, but, owing to the fact that the ends of the arms 2 may besprung toward or away from each other, it will readily accommodateitself to retaining valves in which the distance between the lug holesvaries. Furthermore, the loop may be made of any desired width so thatthe bolt 8 may be of sufficient size to furnish a firm and rigid supportfor the device.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. A retaining valve fastening comprising a bar bent to form a pair ofspaced arms and an elongated central loop, each of said arms having itsend turned over at right angles to form a stud to engage a retainingvalve.

2. A retaining valve fastening comprising a bar bent to form a pair ofarms and an elongated loop at its central portion and studs carried bysaid arms for engaging a retaining valve.

3. A retaining valve fastening comprising a bar bent to provide a pairof arms and an elongated central loop with closed ends, and studsforming extensions of said arms for engaging a retaining valve.

4. A retaining valve fastening comprising a bar of rectangular crosssection bent to form a pair of spaced arms and an elongated centralloop, each of said arms having its end turned over at right angles andreduced to form a cylindrical stud to engage a retaining valve.

In testimony whereof, I hereunto afliX my signature, this th day ofApril, 1929.

STERLING H. CI'XMPBELL.

